package demo3;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 邓大帅
 * Date: 2024-01-10
 * Time: 20:22
 */
//一个类可以实现多个接口
//一个接口可以通过extends来拓展
public interface IUSB {
    void openDevice();
    void closeDevice();
}
